Chemical Annealing of Zinc Tetraphenylporphyrin Films: Effects on Film Morphology and Organic Photovoltaic Performance

2012 ◽  
Vol 24 (13) ◽  
pp. 2583-2591 ◽  
Author(s):  
Cong Trinh ◽  
Matthew T. Whited ◽  
Andrew Steiner ◽  
Christopher J. Tassone ◽  
Michael F. Toney ◽  
...  
Keyword(s):  
Photovoltaic Performance ◽  
Organic Photovoltaic ◽  
Film Morphology ◽  
Chemical Annealing

Mechanisms of the improved organic photovoltaic performance by using electron-transporting CuPc derivative as anode modifying layer

2012 ◽  
Vol 13 (12) ◽  
pp. 2865-2869 ◽  
Author(s):  
Ya-Dong Liu ◽  
Bei Chu ◽  
Zi-Sheng Su ◽  
Wen-Lian Li ◽  
Tao-Jun Zhuang ◽  
...  
Keyword(s):  
Photovoltaic Performance ◽  
Organic Photovoltaic

scholarly journals Artificial light-harvesting n-type porphyrin for panchromatic organic photovoltaic devices

2017 ◽  
Vol 8 (7) ◽  
pp. 5095-5100 ◽  
Author(s):  
Wisnu Tantyo Hadmojo ◽  
Dajeong Yim ◽  
Havid Aqoma ◽  
Du Yeol Ryu ◽  
Tae Joo Shin ◽  
...  
Keyword(s):  
Energy Loss ◽  
Light Harvesting ◽  
Photovoltaic Performance ◽  
Low Energy ◽  
Organic Photovoltaic ◽  
Artificial Light ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Low Bandgap ◽  
Porphyrin Derivative

We developed a novel NIR-harvesting n-type porphyrin derivative, PDI–PZn–PDI, that shows a low bandgap of 1.27 eV. Panchromatic absorption was extended to the NIR area with a significantly low energy loss of 0.54 eV which led to promising photovoltaic performance.

scholarly journals Effect of Annealing Process on CH3NH3PbI3-XClX Film Morphology of Planar Heterojunction Perovskite Solar Cells with Optimal Compact TiO2 Layer

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Dan Chen ◽  
Xiaoping Zou ◽  
Hong Yang ◽  
Ningning Zhang ◽  
Wenbin Jin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Annealing Temperature ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Annealing Process ◽  
Film Morphology ◽  
Perovskite Layer ◽  
Optimal Procedures ◽  
Planar Heterojunction ◽  
Annealing Method

The morphology of compact TiO2 film used as an electron-selective layer and perovskite film used as a light absorption layer in planar perovskite solar cells has a significant influence on the photovoltaic performance of the devices. In this paper, the spin coating speed of the compact TiO2 is investigated in order to get a high-quality film and the compact TiO2 film exhibits pinhole- and crack-free films treated by 2000 rpm for 60 s. Furthermore, the effect of annealing process, including annealing temperature and annealing program, on CH3NH3PbI3-XClX film morphology is studied. At the optimal annealing temperature of 100°C, the CH3NH3PbI3-XClX morphology fabricated by multistep slow annealing method has smaller grain boundaries and holes than that prepared by one-step direct annealing method, which results in the reduction of grain boundary recombination and the increase of Voc. With all optimal procedures, a planar fluorine-doped tin oxide (FTO) substrate/compact TiO2/CH3NH3PbI3-XClX/Spiro-MeOTAD/Au cell is prepared for an active area of 0.1 cm2. It has achieved a power conversion efficiency (PCE) of 14.64%, which is 80.3% higher than the reference cell (8.12% PCE) without optimal perovskite layer. We anticipate that the annealing process with optimal compact TiO2 layer would possibly become a promising method for future industrialization of planar perovskite solar cells.

Planar, bulk and hybrid merocyanine/C60heterojunction devices: a case study on thin film morphology and photovoltaic performance

2012 ◽  
Vol 22 (10) ◽  
pp. 4473-4482 ◽  
Author(s):  
Antti Ojala ◽  
Hannah Bürckstümmer ◽  
Jaehyung Hwang ◽  
Katja Graf ◽  
Bernhard von Vacano ◽  
...  
Keyword(s):  
Thin Film ◽  
Photovoltaic Performance ◽  
Film Morphology

N-phenyl[60]fulleropyrrolidines: alternative acceptor materials to PC61BM for high performance organic photovoltaic cells

2014 ◽  
Vol 2 (48) ◽  
pp. 20889-20895 ◽  
Author(s):  
Makoto Karakawa ◽  
Takabumi Nagai ◽  
Kenji Adachi ◽  
Yutaka Ie ◽  
Yoshio Aso
Keyword(s):  
High Performance ◽  
Photovoltaic Performance ◽  
Photovoltaic Cells ◽  
Organic Photovoltaic ◽  
Device Performance ◽  
Organic Photovoltaic Cells ◽  
Alkyl Derivatives

Novel [60]fulleropyrrolidine derivatives were synthesized and evaluated based on device performance. TheN-phenyfulleropyrrolidines showed better photovoltaic performance than theN-alkyl derivatives and showed high PCE up to 7.3% on combination with PTB7.

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